Pouring nozzle and closure therefor



July 14, 1931. H. E. BARROLL ,658

POURING NOZZLE AND CLOSURE THEREFOR Filed April 25, 1928 2 Sheets-Sheet 1.

Fig.1 fl

[Hz/e1? far Henry Zfiar/v/Z GL6? ze/WW6 July 14, 1931. H. E. BARROLL 1,814,655

POURING NOZZLE AND CLOSURE THEREFOR Filed April 23, 1928 2 Sheets-Sheet 2 f2? yerzzor Patented July 14, 1931 UNITED STATES PATENT OFFICE HENRY E. BABROLIJ, OF CHICAGO, ILLINOIS, AS SIGNOR TO HENRY IBARROLL CO. INC., OF CHICAGO, ILLINOIS, A CORPORATION OF NEW YORK POURING NOZZLE AND CLOSURE THEREFOR Application filed April 23,

My invention relates to an improvement in pouring spouts and in the method of their manufacture. One object of my invention is to provide such a spout which shall be easy and cheap to manufacture and which shall be eflicient in use. Specifically, I provide a spout which may be sealed by any suitable means, for example by rotation of a round cap, preferably screwthreaded or provided.

with cams, wedges or the like. The engagement between the cap and the pouring nozzle provides a sealing surface or ring and within this annular sealing surface I so form a nozzle aperture as to insure the free and easy pouring of the contents of the can in a thin, controlled stream, with a minimum of dribbling or of undesired lateral edge of the stream. Another object is the provision of a sealing cap the looking or screwthreaded portion of which is outside of the sealing portion or surface. Another object is the provision of locking means for such a cap which shall lie substantially entirely out of line with the pouring stream. Another object is the provision of improved means for locking such a cap in place, the removable locking means being positioned exteriorly of the sealing surface and being removable without destroying the sealing effect. When removed, it cannot be replaced, and the hole shows that it has been removed.

Other objects will appear from time to time in the course of the specification and claims.

I illustrate my invention more or less diagrammatically in the accompanying drawings wherein- Figure 1 is a plan view of a can having my nozzle, with the closing cap in place;

Figure. 2 is a similar view with the cap removed, illustrating the locking means of the nozzle.

Figure 3 is an elevation of the nozzle with the cap removed;

Figure 4 is a section on the line 44 of Fig. 1;

igure 5 is a section on the line 5-5 of Fig 1;

igure 6 is a plan view of the can illustrating the form of aperture'of the shank of the pouring spout;

1928. Serial No. 272,104.

Figure 7 is a plan view on an enlarged scale of the cap with parts in horizontal section, illustrating the locking means;

Fi ure 8 is a side elevation of the cap, showing the detachable locking means;

Figure 9 is a plan view on an enlarged scale illustrating a variant form of the nozzle;

Figure 10 is a side view of the variant form of nozzle;

Figure 11 is a side elevation of a cap adapted for use with the nozzle of Fig. 10;

Figure 12 is a plan view of the cap of Fig. 11 with parts broken away and shown in horizontal section, and

Figure 13 is a section on the line 1313 ofv Fig. 11.

Like parts are indicated by like symbols throughout the specification and drawings.

A generally indicates any suitable can body, it being understood, however, that my nozzle may be applied to a wide variety of containers formed of a wide variety of materials and with a great variation of form. For convenience, I illustrate my nozzle as applied to a can formed of thin sheet metal.- The top of the can is 'apertured as at A in Fig. 6, the aperture being so formed as to take the shank of the nozzle, above described, only if it is pointed in the right direction to position the pouring spout portion at the desired point. For example, I show the aperture as flattened or cut away as at A to force the assembler of the can parts to position the nozzle correctly. I may employ an upwardly extending rim A about the aperture, the shank B of the nozzle being positioned thereby and secured to it by any suitable means.

Shank B is generally cylindrical save for the lateral expansion B at the pouring point. The method of production of the shank will be later described in greater detail, but it will suflice at this point to sa that the metal of the blank in which it is ormed is downwardly turned or drawn as at B about the entire periphery of the nozzle, which downwardly turned ortion may be provided with locking mem rs, cams, screwthreads, wedges or the like, generally indicated as B. These are preferably interrupted adwardly as well as downwardly, as indicated at B, and in general I prefer to withdraw the periphery of the seal formed by the top of the nozzle somewhat from the opposed wall of the cap. This is indicated as at B in Fig. 4.

The upper and outer edge of the nozzle portion is provided with a ortion surrounding the entire nozzle whic lies in a sin 1e plane. This sealing ring is indicated, or example, in Figs. 2 and 4 as B, and I show it as extending outwardly about the edge of the portion B to form a pourin lip B, which lip, as above stated, is somew at withdrawn, as at B, from the opposed face of the cap an e.

It will be observed that the pouring lip B, or the portion of it lying in the plane of the seal, extends inwardly from the periphery of the flange, as at B B", which inwardly projecting portions tend to concentrate the flow of the stream at the point or center B of the lip.

0 generally indicates any suitable closing and sealing cap, including the to portion C and the generally cylindrical ange C Positioned in the top portion 0 may be any suitable sealing member, herein shown as a disk C; which may be of cork, or any suitable material. This disk seats upon the sealing surface B and the pouring lip B, and may be drawn downwardly there-against into sealing engagement, for example by the threads 0 formed in the flange C. Any suitable means, such as cams, wedges, and the like, may be employed in connection with the cap, depending upon the formation of the corresponding members on the nozzle, whereby rotation of the cap in one direction serves to seal it firmly in place and rotation in the opposite direction serves to free it from the nozzle.

In order to render the turning of the cap easy, I may provide any suitable roughening means, for instance the outward projections C formed in the lower portion of the flan e C. r

' In or er to provide a lock to hold the cap in position semi-permanentlythat is, until the user desires to break the sealI provide teeth or irregularities on the roughened ortion of the side of the nozzle, as at D in i 2. Opposed to. these teeth is a correspond ing, oppositely toothed locking member D, the inner toothed portion of which projects inwardly through the aperture D in the ofthe cap. The inward projection flana 1), ing toothed in opposition to the teeth D, serves to hold the cap against retrograde rotation once it has been rotated into position. The member D is provided with an outer portion D adapted to be engaged by the hand of the operator. It has a shank D which is spot-welded or otherwise lightly secured, as at D", to the exterior of the cap. When the operator desires to free the cap, a pull on the portion or tab D will break the spot-weld D and permit the removal of the member D thus permanently terminating the locking action. It will be noted that this look is exterior of the seal and thatthe breaking of the lock still permits the operator to leave the can sealed or to reseal it after opening, the sealing being effected simply by the rotation'of the cap.

To illustrate the possibility of various forms of locking means, I have shown in Figs. 9 and following locking flanges or wedges as distinguished from the thread of the earlier figures. Referring first to Fig. 10, I illustrate a general] cylindrical, downwardly turned flange which is indented, however, as at E E on either side of the pouring 1i E, the flan being inwardly recessed or rawn beneat the lip E as at E. E indicates the locking cams or wedges, one on' each side of the flange E, projecting outwardly from the cylindrical surface thereof.

-E indicates the sealing surface, which conforms, as at E, to the pouring li E and the outwardly flared portion B o the shank. The locking teeth earlier described are shown as at E.

The cap is formed to correspond, having the generally c lindrical flange G, the lateral enlargements 1 thereof to render its manual rotation easy, the cam wedges or flanges G" and the locking member generally indicated as at G. v

Itwill be seen that the head of the nozzle, in which is formed the pouring lip, is provided with a narrow,-continuous sealing surface of irregular contour and lying in a single plane,-designated B in Figures 2 to 5 and E, Figures 9 and 10,on which surface rests the seal proper; and that the threads or other locking means with which the cap that covers the seal engages are located exterior to or radially outside of the said sealing surface. This insures that a close liquid and air tight sealing joint maybe maintained entirely around the throat of the nozzle, including within its confines the pouring lip.

It will be realized that whereas I have described and shown a practical and operative device, nevertheless many changes may be made in size, shape, number and disposition of parts without departing from the spirit of my invention, and I therefore wish my description and drawings to be taken as in a broad sense illustrative and diagrammatic, rather than. as literally limiting me to my showing herein.

The use and operation of my invention are as follows:

VI illustrate a pouring li or spout in which the locking thread or loc ing members may be pressed in the flange or lipabout the top ofthe spout. The locking means are out of line with the pouring polnt, as in the case of the Wedges E of Figs. 9 and 10, or as in the case of the thread B which is interrupted at the pouring point asshown in Fig. 3. In the latter case the thread continues almost around the top of the nozzle but so terminates as to leave a break in line with the pouring point. This is important, since, in the pouring of adhesive liquids or liquids which tend to adhere upon drying, such as glue, varnish and the like, it is desirable to avoid having a flow of such liquid across the thread or locking members. Thus one important factor in unintendedly locking the cap to the nozzle is avoided. This break may be employed regardless of the number of threads used, although l have illustrated a single turn of thread. It is important to have this break in line with the pouring point and it is preferable to withdraw the pouring lip somewhat from the periphery of the nozzle edge to make it less likely that the pouring lip itself will be glued or stuck to the opposed inner surface of the cap. I also find it desirable to inwardly turn the the nozzle edge being in line with the pouring point, and to provide such inwardly turned portion as a species of drip edge for the substance being poured.

It is an important feature of my devicethat the securing means, namely, the screw threads and the like, are situated outside of the sealing surface. It is also important that additional locking means are provided, also outside of such seal, for locking the cap semi-permanently in place, during shipment and until it is desired to use the contents. Therefore I provide a part of the lip away from the pouring point with the ratchet teeth D or E, which engage opposed ratchet teeth on the locking member D or G spot-welded or otherwise secured to the exterior of the cap, with the ratchet portion projecting in through the aperture in the cap. As long as this locking member is in position, retrograde rotation of the cap, which would tend to break the seal, is impossible. However, the locking member is preferably lightly spot-welded or otherwise removably secured to the cap and may be withdrawn by the operator. When it is withdrawn its-locking effect is terminated and it cannot normally be replaced. However, the destruction of the locking member is efi'ected without any damage to the closin effect of the cap, since the cap'en ages the lip or the sealing surface E or 6 above the aperture through which the locking member passes. Note that the pouring lip is within the sealing surface and that drawing down the cap against the sealing surface completely cuts off the escape of liquid throu h the nozzle. The sealing surface is preferab y a continuation of the ed e of the pouring lip, and lies in the same p ane.

I claim:

- 1. In a pouring nozzle, a sealing surface lying in a single plane, a screw thread member positioned about and beneath said sealing surface, said screw thread member having an interruption, and a pouring lip, in line with said interruption, formed in said sealing surface.

2. In a pouring nozzle, a sealing surface lying in a single plane, a screw thread member positioned about and beneath said sealing surface, said screw thread member having an interruption, and a pouring lip, in line with said interruption, formed in said sealing surface, the nozzle being recessed beneath said pouring lip, at such interruption in the screw thread member.

3. In a pouring nozzle, a sealing surface lying in a single plane, a wedging locking means positioned about and beneath said sealing surface, said wedging locking means being interrupted, a pourmg lip, in line with in interruption, formed in said sealing surace.

4. In a pouring nozzle, a sealing surface lying in a single plane, a locking member positioned about and beneath said sealing surface, said sealing surface and locking memher being adapted to receive a cap, a pouring lip formed in said sealing surface, said pouring lip terminating within the periphery of said locking member and being adapted to be out of contact with the peripheral flange of such cap, the locking member having an interruption aligned with said lip, the nozzle being recessed beneath said lip.

5. In a pouring nozzle, a nozzle shank, an outwardly flaring flange about the upper portion thereof, a sealing member formed in said flange, a pouring nozzle formed within said sealing member, the sealing member being non-circular and shaped to conform to said pouring nozzle, a pouring lip formed in said flange, at the outer edge of the sealing member, in line with said pouring nozzle, and conforming thereto, said lip being spaced inwardly within the general peripheryof said flange, said flange being formed with a single thread interrupted in line with the pouring lip and extending about an arc of less than 360 degrees.

6. In a pouring nozzle, a nozzle shank, an outwardly flaring flange about the upper portion thereof a sealing member formed in said flange and lying in a single plane, a. pouring nozzle formed within said sealing member,'a cap adapted to engage said sealing member, means "for drawing said cap downwardly against the sealing member in I response to its rotation in one direction, and

means for normally preventing retrograde rotation of said cap.

7. The structure of claim 6 characterized in'that the means for preventing retro ade rotation include teeth associated wit the flange and opposed teeth associated with the cap, such teeth being adapted to over-ride each other during rotation of the ca in one direction and being adapted operatively to engage each other in response to retrograde rotation of the cap.

8. The structure of claim 6 characterized in that a locking member is removably mounted on the cap, said locking member having a portion adapted to eng the flange, said portion and the oppose part of the flange being provided with teeth adapted to over-ride each other during rotation of the cap in one direction and to engage each other operatively in response tov retrograde rotation of the cap.

9. The combination with a container, of a,;-pouring nozzle, one side of the container Being apertured to receive said nozzle, said 'nozzle including a shank adapted to conform to said aperture and be permanently secured therein, said aperture, and the cross-section of the shank, bein non-circular and of a contour permitting 5m insertion of the shank into the aperture only when the nozzle is in one particular position with its pouring lip in the desired relation to the container.

10. In a uring nozzle, a nozzle shank, a cap for sald nozzle, securing means associated with said shank and adapted to engage opposed securing members upon said cap, said securing means on said nozzle bemg interrupted to form a pouring space, the edge of the nozzle being adapted to form a pouring lip in line with such interruption.

11. The structure of claim 6 characterized in that the edge or pouring lip of the nozzle, in line with the interruption, 1s inwardly recessed or undercut to prevent dri Signed at Chicago, county of gook, and State of Illinois, this 17th day of April, 1928.

HENRY E. BARROLL. 

